Concept Application and Fact for Prelims Day-55

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This is the Day-55 questions of the CAF Revision plan for prelims. The questions are based on the syllabus as provided in the schedule. Aspirants are requested to go through the detailed CAF strategy to understand the need of the UPSC prelims and to prepare well for the same. Attempt the questions honestly. The link to key answers and explanations of this test is at the end of the questions. The maximum time to attempt the 15 questions is 20 minutes.


Q.1) Among the following States, which one has the most suitable climatic conditions for the cultivation of a large variety of orchids with minimum cost of production, and can develop an export-oriented industry in this field?

a) Andhra Pradesh

b) Arunachal Pradesh

c) Madhya Pradesh

d) Uttar Pradesh


Q.2) If a tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because

(a) the soil of rain forest is deficient in nutrients

(b) propagules of the trees in a rain forest have poor viability

(c) the rain forest species are slow-growing

(d) exotic species invade the fertile soil of rain forest.


Q.3) Consider the following statements regarding Fly Ash?

1. Fly Ash reduces the cost of construction of building and roads etc.

2. Fly Ash reduces the effectiveness of photosynthesis

3. Fly Ash enhances water holding capacity of the land and increase the crop yield.

Select the correct answer from the code given below:

(a) 1 and 2 only

(b) 1 and 3 only

(c) 2 and 3 only

(d) 1, 2 and 3


Q.4) Which of the following are not solid waste?

(a) Discarded material from waste water treatment plant

(b) Discarded material from industries

(c) Solid or dissolved materials from domestic sewage

(d) Solid waste from air pollution control facility


Q.5) Which sector produce highest global greenhouse gas emission according to report?

(a) Agriculture sector

(b) Industrial sector

(c) Energy sector

(d) Transport sector


Q.6) Which of the following are the sources of compounds causing acid rain.

1. Sulphur

2. Formaldehyde

3. Carbon monoxide

4. Carbon dioxide

Select the correct answer from the code given below:

(a) 1 only

(b) 1, 3 and 4 only

(c) 1, 2, 3 and 4

(d) 3 and 4 only


Q.7) Currently ocean has a PH around 8.0 and is therefore “basic” and it is nearly impossible for all of it to become a PH less than 7. Still we use term ocean acidification why?

(a) Currently ocean PH is less than 7 and not around 8

(b) Ocean acidification term is misnomer used for climate change

(c) Acidification refers to death of aquatic organisms and its not related to acidify

(d) Acidification refers to lowering PH from any starting point to any end point.


Q.8) Consider the following statements regarding Carbon credit?

1. Carbon credit is a tradeable certificate representing the right to emit carbon.

2. One carbon credit is equal to one ton of CO2.

3. Developing countries are biggest buyers and developed countries are biggest sellers.

Select the correct answer using the code given below.

(a) 1 and 2 only

(b) 2 and 3 only

(c) 1 only

(d) 1, 2 and 3


Q.9) “This nomadic tribe of India is native of largest grassland in Asia which is situated in Gujarat. But very recently, due to the acute scarcity of water in the region they are leaving their villages”.

Which one of the following nomadic tribe is described in the above paragraph?

(a) Banjaras

(b) Chakmas

(c) Riang

(d) Maldhari


Q.10) Presently, Indian Agriculture is less efficient compare to earlier decades. Which of the following reasons contributes for the failure of Indian Agriculture?

1. Low productivity of land

2. Strong land reform policies

3. Fragmentation of land holding

4. Disorder in marketing of Agriculture products

Select the correct answer using the codes given below:

(a) 1, 3 and 4 only

(b) 2 and 3 only

(c) 3 and 4 only

(d) 1, 2, 3 and 4


Q.11) Where can we commercially use the sequestrated CO2.

1. In Horticulture

2. For dry ice production

3. For developing new kind of plastic

Select the correct answer using the code given below:

(a) 1 only

(b) 1 and 2 only

(c) 2 only

(d) 1, 2 and 3


Q.12) Which of the following pairs are correctly matched?

             International Hazardous                     conventions material

1. Stockholm convention                     Persistent Organic Pollutants                 

2. Basel convention                               Transboundary movement of hazardous material

3. Rotterdam convention                    Pesticides and industrial chemicals                              

Select the correct answer using the code given below.

(a) 1 only

(b) 2 only

(c) 3 only

(d) All of the above


Q.13) National Clean Air Programme (NCAP) was recently launched by Ministry of Environment Forest and Climate Change (MoEFCC). Consider the following statements about it?

  1. It is multispectral collaboration and participatory approach programme.
  2. Implemented in non – attainment cities

Select the correct answer using the code given below.

(a) 1 only

(b) 2 only

(c) Both 1 and 2

(d) Neither 1 nor 2


Q.14) Which of the following are the types of techniques at waste to energy plants.

1. Incineration

2. Gasification

3. Pyrolysis

4. Bio-methanation

Select the correct answer using the code given below.

(a) 1 and 2 only

(b) 2 only

(c) 1, 2, 3 and 4

(d) 1, 2 and 3 only


Q.15) Consider the following regarding photochemical smog?

1. Photochemical smog formed when ground level ozone and volatile organic compounds interact in the presence of sunlight

2. Pinus and Juniper plants reduces photochemical smog

Select the correct answer using the code given below.

(a) 1 only

(b) 2 only

(c) Both 1 and 2

(d) Neither 1 nor 2


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